CN212782847U - Shielding cold-resistant high-voltage direct-current cable - Google Patents
Shielding cold-resistant high-voltage direct-current cable Download PDFInfo
- Publication number
- CN212782847U CN212782847U CN202022256302.9U CN202022256302U CN212782847U CN 212782847 U CN212782847 U CN 212782847U CN 202022256302 U CN202022256302 U CN 202022256302U CN 212782847 U CN212782847 U CN 212782847U
- Authority
- CN
- China
- Prior art keywords
- shielding layer
- cable
- layer
- arc
- voltage direct
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000004020 conductor Substances 0.000 claims abstract description 25
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 14
- 230000000694 effects Effects 0.000 abstract description 7
- 238000009413 insulation Methods 0.000 abstract description 7
- 238000005452 bending Methods 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 64
- 239000002184 metal Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 229920001971 elastomer Polymers 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000000806 elastomer Substances 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 229920006342 thermoplastic vulcanizate Polymers 0.000 description 3
- KVNRLNFWIYMESJ-UHFFFAOYSA-N butyronitrile Chemical compound CCCC#N KVNRLNFWIYMESJ-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000012792 core layer Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036314 physical performance Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Images
Abstract
The utility model discloses a cold-resistant high voltage direct current cable of shielding, including stranded conductor and joint subassembly, the surface of stranded conductor is provided with the conductor shielding layer, the surface of conductor shielding layer is provided with the insulating layer, the surface of insulating layer is provided with the insulation shielding layer, the surface of insulation shielding layer is provided with the copper wire shielding layer, the surface of copper wire shielding layer is provided with the oversheath. The utility model discloses the utilization sets up conductor shielding layer, insulating layer, insulation shielding layer and copper wire shielding layer in the stranded conductor outside, has strengthened the shielding effect and the anti-electromagnetic interference ability of cable, and cable bending property is good, cooperates oversheath etc. simultaneously, makes cable low temperature resistant performance good to have certain pliability, resistant oil, anticorrosive performance, make the cable have good bending and resistant side pressure performance, satisfied the demand in the important use place of the resistant low temperature high voltage direct current cable of shielded type.
Description
Technical Field
The utility model relates to the technical field of cables, specifically be a cold-resistant high voltage direct current cable of shielding.
Background
The high voltage cable is a kind of power cable, which is used for transmitting power between 1kv and 1000kv, and is widely used for power transmission and distribution.
The cable is a bridge between power supply equipment and electric equipment, plays a role in transmitting electric energy, is generally used for supplying power to a direct current system at present, and has poor flexibility, low temperature resistance and shielding anti-interference performance in the using process, so that the normal use of a diameter device system is restricted.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a shield cold-resistant high voltage direct current cable to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a cold-resistant high voltage direct current cable of shielding, includes stranded conductor and joint subassembly, the surface of stranded conductor is provided with the conductor shielding layer, the surface of conductor shielding layer is provided with the insulating layer, the surface of insulating layer is provided with the insulation shielding layer, the surface of insulation shielding layer is provided with the copper wire shielding layer, the surface of copper wire shielding layer is provided with the oversheath.
The conductor shielding layer, the insulating layer, the insulation shielding layer and the copper wire shielding layer are arranged outside the stranded conductor, the shielding effect and the anti-electromagnetic interference capability of the cable are enhanced, the bending performance of the cable is good, meanwhile, the cable is good in low temperature resistance by matching with the outer sheath and the like, and has certain flexibility, oil resistance and corrosion resistance.
Preferably, the joint subassembly with the oversheath cup joints, the joint subassembly includes the arc piece, the bottom of the arc piece left and right sides all rotates and is connected with the arc, the arc with the surface of the relative one side of arc piece all is provided with the abrasionproof pad.
Preferably, a limiting groove is formed in one side of the top end of the arc-shaped block, a first connecting groove is communicated with one side of the inner surface of the limiting groove, and a second connecting groove is formed in one side of the top of the arc-shaped plate.
Preferably, the inside of spacing groove is provided with fixed subassembly, fixed subassembly includes the stopper, the stopper is located the inside of spacing groove.
Preferably, the middle of one side of the limiting block is fixedly connected with a connecting rod, and the connecting rod passes through the first connecting groove and the second connecting groove and extends to the outer part of the arc-shaped plate.
Preferably, a telescopic groove is formed in one end of the connecting rod, a spring is arranged in the telescopic groove, clamping blocks are fixedly connected to the upper end and the lower end of the spring, and one end of each clamping block penetrates through the connecting rod and extends to the outside of the connecting rod.
Through cup jointing the joint subassembly in the cable outside, can fix the tip of cable, avoid the cable loose coming when not using, influence next use, and fixed through fixed subassembly during arc and arc piece, conveniently open, avoid influencing the use of cable.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses the setting is through setting up the conductor shielding layer in the transposition conductor outside, the insulating layer, insulation shielding layer and copper wire shielding layer, the shielding effect and the anti-electromagnetic interference ability of cable have been strengthened, cable bending property is good, cooperate oversheath etc. simultaneously, make cable low temperature resistant performance good, and have certain pliability, resistant oil, the anticorrosive performance, shielding, anti-electromagnetic interference, low temperature resistant, it is resistant to oil, multiple performance such as corrosion resistance closes integratively, make the cable have good bending and resistant side pressure performance, the demand in the important use place of shielded low temperature resistant high voltage direct current cable has been satisfied, stronger advantage and more extensive application have reliable guarantee.
Drawings
Fig. 1 is a schematic external structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic structural view of the present invention;
fig. 4 is a schematic view of the internal structure of the present invention;
fig. 5 is a schematic view of the internal structure of the present invention;
FIG. 6 is a schematic view of the internal structure of the clamping assembly of the present invention;
fig. 7 is an enlarged view of a portion of fig. 6 according to the present invention.
In the figure: 1. a stranded conductor; 2. a clamping assembly; 21. an arc-shaped block; 22. an arc-shaped plate; 23. an anti-wear pad; 24. a limiting groove; 25. a first connecting groove; 26. a second connecting groove; 3. a conductor shield layer; 4. an insulating layer; 5. an insulating shield layer; 6. a copper wire shielding layer; 7. an outer sheath; 8. a fixing assembly; 81. a limiting block; 82. a connecting rod; 83. a telescopic groove; 84. a spring; 85. and (7) clamping blocks.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-7, the present invention provides an embodiment:
the utility model provides a cold-resistant high voltage direct current cable of shielding, includes stranded conductor 1 and joint subassembly 2, the surface of stranded conductor 1 is provided with conductor shielding layer 3, the surface of conductor shielding layer 3 is provided with insulating layer 4, the surface of insulating layer 4 is provided with insulating shielding layer 5, insulating shielding layer 5's surface is provided with copper wire shielding layer 6, copper wire shielding layer 6's surface is provided with oversheath 7.
The insulating shielding layer 5 is composed of two layers of semi-conducting belts and comprises a first semi-conducting belt sub-layer and a second semi-conducting belt sub-layer, wherein the first semi-conducting belt sub-layer is wound outside the insulating layer 4 to form a first semi-conducting belt sub-layer, a semi-conducting belt layer is further wound outside the first semi-conducting belt sub-layer to form an outer semi-conducting belt sub-layer, namely the insulating shielding layer 5, the winding direction of the first semi-conducting belt sub-layer and the second semi-conducting belt sub-layer is in the left direction, the overlapping rate of the first semi-conducting belt sub-layer and the second semi-conducting belt sub-layer is 20% -25%, the insulating layer 4 is made of a high-flexibility TPV (thermoplastic vulcanizate) elastomer material and has the thickness of 10.5-11.0 mm, the copper wire shielding layer 6 is a shielding and anti-interference layer composed of a tinned braided shielding layer, a low-temperature-resistant butyronitrile elastomer is extruded outside the tinned, the metal single wire is formed by twisting a plurality of metal single wires, wherein the cross section area of each metal wire is 2.5-16mm2, and the thickness of an insulating layer on the outer portion of each metal wire is 10.0-11.0 mm.
In this embodiment, joint subassembly 2 with oversheath 7 cup joints, joint subassembly 2 includes arc piece 21, the bottom of the arc piece 21 left and right sides all rotates and is connected with arc 22, arc 22 with the surface of the relative one side of arc piece 21 all is provided with abrasionproof pad 23.
The clamping component 2 is in contact with the outer sheath 7 and is sleeved outside the cable, the end part of the cable can be fixed, the cable is prevented from being sent and scattered when not in use to influence carrying, the abrasion-proof pad 23 is adhered to the inner parts of the arc-shaped plate 22 and the arc-shaped block 21, the abrasion to the outer sheath 7 can be reduced due to the rubber material, and meanwhile friction between the outer sheath 7 and the abrasion-proof pad can be increased.
In this embodiment, a limiting groove 24 is formed at one side of the top end of the arc block 21, a first connecting groove 25 is communicated with one side of the inner surface of the limiting groove 24, and a second connecting groove 26 is formed at one side of the top of the arc plate 22.
In this embodiment, the inside of the limiting groove 24 is provided with a fixing component 8, the fixing component 8 includes a limiting block 81, and the limiting block 81 is located inside the limiting groove 24.
In this embodiment, a connecting rod 82 is fixedly connected to the middle of the side of the limiting block 81, and the connecting rod 82 passes through the first connecting groove 25 and the second connecting groove 26 and extends to the outside of the arc plate 22.
In this embodiment, a telescopic groove 83 is formed in one end of the connecting rod 82, a spring 84 is arranged in the telescopic groove 83, two ends of the spring 84 are fixedly connected with a clamping block 85, and one end of the clamping block 85 penetrates through the connecting rod 82 and extends to the outside of the connecting rod 82.
The telescopic slot 83 is a slot adapted to the size of the spring 84, the spring 84 is slidable in the telescopic slot 83, and the spring 84 is a compression spring having good elasticity.
The working principle is as follows: the insulating shielding layer 5 is made of a semiconductive material belt with a first semiconductive belt shielding sub-layer and a second semiconductive belt shielding sub-layer as shielding layers, the density of the wrapping belts used by the first semiconductive belt shielding sub-layer and the second semiconductive belt shielding sub-layer is 1.15-1.2g/cm3, preferably 1.15g/cm3, the wrapping insulating shielding belt 5 with the density can meet shielding requirements and save production cost, the thickness of the wrapping belt used by the first semiconductive belt shielding sub-layer is 0.15-0.20mm, preferably 0.18mm, the inventor finds that the wrapping belt with the thickness can be tightly wrapped, the shielding requirements and the production cost can be saved, the width of the wrapping semiconductive belt used by the first semiconductive sub-layer and the second semiconductive sub-layer is 30-50mm, preferably 35-40mm, the width of the wrapping belt can meet the requirements of the lapping rate and the requirements of corners, the appearance of the insulating shielding layer 5 is smooth and flat, The covering rate of the first and second semi-conductive tape shielding sub-layers is 20% -25%, preferably 20%, the covering rate can be uniform and free of wrinkles, and the insulating and shielding effect is good.
The copper wire shielding layer 6 plays a role in uniform electric field, the outer sheath 7 is formed by extruding a low-temperature-resistant butyronitrile elastomer sheath material, the thickness of the outer sheath 7 is 2.0-2.4mm, preferably 2.2mm, the larger the thickness of the outer sheath 7 is, the stronger the protection effect on the interior of the cable such as scratch prevention and the like is, the thinner the thickness of the outer sheath 7 is, the better the flexibility of the cable is, and when the thickness of the outer sheath 7 is 2.2mm, the enough protection effect can be achieved, the flexibility requirement of the cable can be met, the outer sheath 7 has the low-temperature-resistant effect, the flexibility is good, the oil resistance and the corrosion resistance are good, and the purposes of good cable quality, safety and environmental protection are really achieved.
The stranded conductor 1 is formed by stranding a plurality of metal wires, the cross section of each metal wire in the cable is circular, the cross section area is 2.5-16mm2, the insulating layer 4 is extruded outside the core layer of the conducting wire, the thickness of the insulating layer 4 is 10.0-11.0mm, preferably 10.5mm, the insulating layer 4 is formed by extrusion molding of a high-flexibility TPV elastomer insulating material, and the material used for the insulating layer 4 has excellent electrical performance, physical performance and mechanical performance, so that the cable has the characteristics of certain voltage resistance and good flexibility.
When the cable uses not using after partly, the staff can press fixture block 85, press into flexible groove 83 with two fixture blocks 85, later alright through stopper 81 with connecting rod 82 pulling department second spread groove 26, alright rotation arc 22 afterwards, place the cable in arc piece 21, then in inserting fixed subassembly 8 second spread groove 26, the spring 84 that is in compression state always needs to resume deformation, thereby extrude fixture block 85, be in the same place arc 22 with arc piece 21 is fixed.
After that the arc 22 on the other side is opened, the cable in the middle of the cable, which is in contact with the cable end, is placed in the arc block 21 and then it is clamped using the fixing assembly 8, so that the cable is prevented from being loosened.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (6)
1. The utility model provides a cold-resistant high voltage direct current cable of shielding, includes stranded conductor and joint subassembly, its characterized in that: the outer surface of the stranded conductor is provided with a conductor shielding layer, the outer surface of the conductor shielding layer is provided with an insulating layer, the outer surface of the insulating layer is provided with an insulating shielding layer, the outer surface of the insulating shielding layer is provided with a copper wire shielding layer, and the outer surface of the copper wire shielding layer is provided with an outer sheath.
2. The shielded cold-resistant high-voltage direct current cable according to claim 1, wherein: the joint subassembly with the oversheath cup joints, the joint subassembly includes the arc piece, the bottom of the arc piece left and right sides all rotates and is connected with the arc, the arc with the surface of the relative one side of arc piece all is provided with the abrasionproof pad.
3. The shielded cold-resistant high-voltage direct current cable according to claim 2, wherein: a limiting groove is formed in one side of the top end of the arc-shaped block, a first connecting groove is communicated with one side of the inner surface of the limiting groove, and a second connecting groove is formed in one side of the top of the arc-shaped plate.
4. The shielded cold-resistant high-voltage direct current cable according to claim 3, wherein: the inside of spacing groove is provided with fixed subassembly, fixed subassembly includes the stopper, the stopper is located the inside of spacing groove.
5. The shielded cold-resistant high-voltage direct current cable according to claim 4, wherein: the middle of stopper one side fixedly connected with connecting rod, the connecting rod passes through first spread groove with the second spread groove just extends to the outside of arc.
6. The shielded cold-resistant high-voltage direct current cable according to claim 5, wherein: the telescopic groove is formed in one end of the connecting rod, the spring is arranged in the telescopic groove, clamping blocks are fixedly connected to the upper end and the lower end of the spring, and one end of each clamping block penetrates through the connecting rod and extends to the outside of the connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022256302.9U CN212782847U (en) | 2020-10-12 | 2020-10-12 | Shielding cold-resistant high-voltage direct-current cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022256302.9U CN212782847U (en) | 2020-10-12 | 2020-10-12 | Shielding cold-resistant high-voltage direct-current cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212782847U true CN212782847U (en) | 2021-03-23 |
Family
ID=75057128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022256302.9U Expired - Fee Related CN212782847U (en) | 2020-10-12 | 2020-10-12 | Shielding cold-resistant high-voltage direct-current cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212782847U (en) |
-
2020
- 2020-10-12 CN CN202022256302.9U patent/CN212782847U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101071658A (en) | Waterproof power cable and its manufacturing method | |
| CN201532808U (en) | Single-phase 27.5kV electric power cable of electrified railway | |
| KR20120057823A (en) | Electrical power cable formed nylon sheath | |
| CN212782847U (en) | Shielding cold-resistant high-voltage direct-current cable | |
| CN208141852U (en) | Special-shaped single line compact conductor midium voltage cable | |
| CN216528079U (en) | Medium-voltage variable-frequency power cable matched with high-performance large-capacity frequency converter | |
| CN205984371U (en) | Waterproofing type aluminum alloy medium voltage power cable | |
| CN210743666U (en) | Metal band shielding high-voltage power cable with tenon-and-mortise structure | |
| CN207441339U (en) | A kind of high-speed EMU cable | |
| CN210805325U (en) | Super-flexible high-voltage pulse power supply cable | |
| CN220340955U (en) | Water-blocking type low-voltage power cable | |
| CN214796795U (en) | Medium-voltage ethylene-propylene insulated fuse cable | |
| CN208521636U (en) | A kind of flexible environmentally friendly 110kV twisted polyethylene cable that blocks water | |
| CN220709974U (en) | Environment-friendly waterproof wear-resistant double-sheath nylon flexible wire | |
| CN220895243U (en) | High-performance medium-voltage power cable | |
| CN214588080U (en) | Rubber insulation high-voltage flexible cable for X-ray machine | |
| CN216014839U (en) | Explosion-proof and waterproof cable | |
| CN216487427U (en) | Antimagnetic anti-interference special cable | |
| CN217468063U (en) | Transmission cable | |
| CN209691418U (en) | A kind of 26/35kV and following Cable for frequency changer | |
| CN209607442U (en) | A kind of 0.6/1kV Cable for frequency changer | |
| CN210325322U (en) | Water-blocking high-voltage power cable | |
| CN216250059U (en) | Metal backflow cable of high-voltage direct-current power transmission system | |
| CN217933252U (en) | Low temperature resistant anti-cracking power cable | |
| CN220439310U (en) | Data transmission line |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210323 |